[XenPPC] JS21/SLOF net boot commands

[Jimi Xenidis <jimix@xxxxxxxxxxxxxx>]

If you build Dom0 "into" your xen image do the following (simple  
replace the patch with your tftpboot path):
  0> s" netboot 3000000 1000000 /tftpboot/slof/xen" snk
  0> 3000000 load-elf-file start-elf

If you want to load Dom0 seperately then:

  0> s" netboot 4000000 1000000 /tftpboot/slof/dom0" snk
  0> ciregs >r3 @
  0> s" netboot 3000000 1000000 /tftpboot/slof/xen" snk
  0> ciregs >r4 !
  0> 4000000 ciregs >r3 !
  0> 3000000 load-elf-file start-elf


***NOTE cutting and pasting a multi-line command can be dubious or  
various serial protocols so this could be concatenated as one line an  
pasted, all hail FORTH :)

if you wanted to set a forth word that does thif it would look like:
  : xen
        s" netboot 4000000 1000000 /tftpboot/slof/dom0" snk
        ciregs >r3 @
        s" netboot 3000000 1000000 /tftpboot/slof/xen" snk
        ciregs >r4 !
        4000000 ciregs >r3 !
        set-bootargs 3000000 load-elf-file start-elf
  ;

This would perform all of the above but also allow for the  
customization of boot parms and you would use as follows:
  0> xen <bootargs>


how exactly to make a forth word (at runtime or even in SLOF source)  
is unknown to me personally but may fallow in this email thread?
-JX

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